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IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation, operation, and
maintenance of the EPO system.
Safety Instructions for North America
WARNING: Only certied electricians may install the system and the wiring to the
products IT controls.
WARNING: Assembly has not been evaluated for emergency life critical applications,
but is intended for emergency equipment power off.
Note: Wiring from the system to the products IT controls can either be installed in conduits
or installed without conduits if the wires are in accordance with Article 725 of the National
Electrical Code (NFPA 70) and Section 16 of the Canadian Electrical Code (C22.1).
Caution: Only Class 2 circuits rated 30 V or less can be connected to terminals 1–8. Class 2
circuits are dened in Article 725 of the National Electrical Code (NFPA 70) and Section 16
of the Canadian Electrical Code (C22.1). A Class 2 circuit is a source having limited voltage
and energy capacity as follows:
A.If an Inherently Limited Power Source, voltage is limited to 30 VAC or 30 VDC, and
energy is limited to 8 A.
B. If not an Inherently Limited Power Source, voltage is limited to 30 VAC or 30 VDC,
energy is limited to 250 VA, and current is limited to 1000/Vmax. The fuse is limited
to 5 A if maximum voltage is 20 V, or 100/Vmax if voltage is greater than 20 V
but less than 30 V.
990–1611C-001
Emergency Power Off System Installation and Operation
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